Voter Registration Totals as of March 1, 2019

County Constitution Democratic Libertarian Republican Unaffiliated Total Registered
Ada 672 48,015 3,191 106,608 101,440 259,926
Adams 16 186 14 1,696 681 2,593
Bannock 136 4,991 410 17,171 18,382 41,089
Bear Lake 16 118 12 2,587 577 3,310
Benewah 23 529 33 2,440 2,001 5,026
Bingham 78 1,718 90 12,670 5,722 20,275
Blaine 16 3,199 120 3,383 7,052 13,770
Boise 24 347 42 2,937 1,415 4,765
Bonner 148 2,686 240 14,990 7,990 26,054
Bonneville 186 4,188 437 30,085 18,048 52,944
Boundary 26 433 56 4,145 1,527 6,187
Butte 5 65 4 1,141 278 1,493
Camas 6 37 6 463 206 718
Canyon 438 10,737 933 48,125 34,399 94,631
Caribou 20 113 15 2,711 844 3,703
Cassia 31 506 42 6,710 2,060 9,349
Clark 2 17 2 304 49 374
Clearwater 11 359 29 2,258 1,698 4,355
Custer 4 149 19 1,983 642 2,797
Elmore 46 1,012 90 6,009 3,336 10,493
Franklin 46 177 30 4,635 1,316 6,204
Fremont 28 295 25 5,069 1,304 6,721
Gem 52 631 56 6,209 2,601 9,549
Gooding 21 554 34 3,777 1,732 6,118
Idaho 33 569 55 6,629 2,426 9,712
Jefferson 49 442 55 10,035 2,998 13,579
Jerome 86 729 49 4,452 2,643 7,959
Kootenai 357 8,961 758 44,376 27,371 81,823
Latah 76 4,687 311 7,589 9,939 22,602
Lemhi 11 391 32 3,329 1,303 5,066
Lewis 6 162 10 1,242 551 1,971
Lincoln 9 168 16 1,312 601 2,106
Madison 95 617 196 12,909 4,622 18,439
Minidoka 25 590 36 4,818 2,219 7,688
Nez Perce 74 2,605 133 8,732 9,725 21,269
Oneida 7 95 20 1,880 455 2,457
Owyhee 30 433 35 3,247 1,398 5,143
Payette 43 978 76 6,606 3,786 11,489
Power 8 383 11 1,690 1,180 3,272
Shoshone 21 1,324 31 2,485 2,572 6,433
Teton 14 1,285 61 2,425 2,447 6,232
Twin Falls 137 3,266 280 19,881 11,979 35,543
Valley 18 1,019 49 3,480 2,399 6,965
Washington 12 398 28 3,549 1,239 5,226
Total 3,162 110,164 8,172 438,772 307,153 867,418